NWS Forecast Office Houston/Galveston, TX

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Last Map Update: Mon, May 25, 2026 at 2:16:18 pm CDT

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Heavy Rainfall Risk Mid Week

Forecast Rainfall Totals

Current radar loop for Houston, TX.

Partly cloudy with a chance for showers and thunderstorms this afternoon., Highs in the mid to upper 80's area-wide. Winds generally out of the east.

Low temperatures in the upper 60s to 70s. Partly cloudy conditions tonight, Isolated showers and thunderstorms possible.

Atmospheric conditions are expected to be favorable for producing high levels of ozone pollution in the Houston, Galveston and surrounding areas through Monday evening.

Chance of showers and thunderstorms returns this week. Slight Excessive Rainfall Risk (Level 2 of 4) for the entire area on Wednesday. Marginal Excessive Rainfall Risk (level 1 of 4) for the western portion of our region on Tuesday. Marginal Excessive Rainfall Risk (level 1 of 4) For the eastern part of the region on Thursday, due to lingering showers and thunderstorms. Localized flash flooding is the most likely impact if repeated strong storms move over the same area.

The threat of heavy rainfall arrives once again mid-week. While isolated to scattered showers and thunderstorms are expected Tuesday through Thursday, the main time frame for heavy rainfall will be past midnight on Tuesday into Wednesday morning. Wide spread totals of 1-2" are forecast, with isolated amounts of up to 3-5" possible. Because of last week's rainfall, soils are already primed. Additional rainfall may lead to runoff and potential street flooding.

Current Weather Observations...

Location	Time (CDT)	Weather	Vsby. (SM)	Temp. (ºF)	Dewpt. (ºF)	Hum. (%)	Wind (mph)	Wind Chill / Heat Index (ºF)	Pres. (in)
Crockett	13:55		10	87	64	45	CALM	-	29.94
Caldwell	13:35	Partly Cloudy	10	86	68	55	SSW 3	-	29.98
College Station	13:53	Partly Cloudy	10	85	66	53	NE 6	-	29.95
Huntsville	13:53	Clear	10	87	64	46	ENE 7	-	29.95
Navasota	13:55	Mostly Cloudy	10	86	74	65	CALM	94 [HI]	29.94
Conroe	13:53	Mostly Cloudy	10	85	69	59	N 5	-	29.95
Hooks Airport	13:53	Clear	10	86	67	53	VRB 3	-	29.94
Intercontinental Airport	13:53	Mostly Cloudy	10	86	69	57	N 6	-	29.93
Houston Hobby Airport	13:53	Partly Cloudy	10	87	67	51	ENE 9G16	-	29.92
Sugar Land	13:53	Partly Cloudy	10	86	67	53	CALM	-	29.92
Wharton	01:10	Light Rain	5	68	66	93	N 17G24	-	30.08
Pearland	13:53	Clear	10	87	67	51	VRB 5	-	29.94
Ellington Field	12:54	Partly Cloudy	10	84	68	58	E 5	-	29.94
La Porte	13:35	Mostly Cloudy	10	84	69	61	NW 6	-	29.95
Angleton/Lake Jackson	13:53	Mostly Cloudy	10	84	70	62	ESE 6	-	29.93
Galveston	13:52	Partly Cloudy	10	81	72	74	ESE 5	-	29.95
Bay City	13:55	Mostly Clear	10	85	76	74	ENE 10	95 [HI]	29.89
Palacios	13:53	Light Rain	10	83	71	67	VRB 6	-	29.93
Rig 20 Miles SE of Galveston	13:55	Clear	10	78	71	78	CALM	-	29.96
Rig 20 Miles SE of Matagorda	14:00		10	80	75	83	NE 12	-	29.98

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